Used as a selective ionophore in ion-selective electrodes, particularly for detecting potassium ions in various analytical applications. Its crown ether structure allows it to complex with specific cations, making it valuable in chemical sensing and separation processes. Additionally, it finds use in research studies involving supramolecular chemistry, where it aids in understanding host-guest interactions and molecular recognition. Its nitro group also enables further functionalization for tailored applications in material science and organic synthesis.